Fan-support.



F. ANDRUS.

FAN SUPPORT. APPLIOATION FILED 13110.13, 1909.

Patented Dec.27,1910.

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FAN SUPPORT.

APPLIOATION IILED DEC. 13, 1909.

Patented Dec.27, 1910.

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FRANK ANDRUS, OF CHICAGO, ILLINOIS, ASSIC-NOR F ONE-HALF TO-MONTEZUMASCOTT, OF CHICAGO, ILLINOIS.

FAN-SUPPORT.

Specification of Letters Yatent.

Patented Dec. 2'7, 1910.

Application filed December 13, 1909. Serial No. 532,951.

To all whom it may concern:

Be it known that I, FRANK Animus, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Fan-Supports, of whichthe following is a specification.

The object of this invention is to provide an improved support forelectric and other power-driven fans which is arranged to be moved bythe current of air from the fan to change the position of the fan andthe di rection of its air current so that said current will be directedto Various parts of the room.

In the accompanying drawings, Figure 1 is a side elevation of a fansupport embodying the features of my invention, an electric fan beingshown in position on the support. Fig. 2 is a front elevation of thesupport with the fan removed. Flg. 3 1s a plan view showing a portion ofthe rotatable table broken away. Fig. 41 is a fragmental frontelevation. .Figs. 5 and 6 are detail views of the connection between thedriving crank and its link. Fig. 7 is a fragmentary view of therotatable table and a section through the extensible standard which supports the propelling wheel.

The embodimentwhich I have shown for the purpose of illustrating theinvention comprises a base 1 having a post 2 rising centrally therefrom,said post rotatably carrying a table 3, adapted to support an electricor other fan A. Means is provided for moving the table 3 back and forththrough a partial rotation so as to cause the blades of the fan A todescribe an arc of a circle and thereby direct the current of air tovarious parts of a room. Said means comprises a shaft 4 rotatablymounted in a bracket 5 secured to the under side of the table 3. Theinner end of the shaft 4; is in this instance bent to form a crank 6,the free end of said crank being connected by a link 7 to a part 8 fixedto the base 1. The part 8 as herein shown is in the form of a spring,bent to occupy but little space and.

yet presenting a relatively long spring arm. One end of the link 7 isconnected to the free end of the spring 8 and the other end of said linkis connected to a bearing 9 in which the free end of the crank 6 rotates(Fig. 6).

Rising from the edge of the table 3 above the shaft 4 is a standard 10having a bearing 11 at its upper end in which bearing a shaft 12 isrotatably mounted, said shaft extending substantially parallel to theshaft t. Upon the outer end of the shaft 12 is a wind wheel 13comprising a hub 14; having a plurality of radial arms 15 securedthereto and vanes 16 secured to the arms 15, said vanes being adjustableupon their arms 15 in order to vary the inclination of the vanes withrespect to the air current from the fan, and thereby vary the speed ofrotation of the wheel 13. It will be understood that the fan A ispositioned on the table 3 with its fan wheel facing the wheel 13. V

A pulley 17 which may be integral with the hub 1% is connected with apulley l8 fixed on the shaft 4: through the medium of a belt 19 so thatrotation of the wheel 13 imparts rotation to the shaft at.

The standard 10 may be made extensible so that the position of the wheel13 may be varied to accord with fans of varying heights. I have hereinshown the standard as composed of two telescoping sections which may besecured together in the desired relation by means of a set screw 20.Said sections are preferably square in cross section, the lower end ofthe lower section fitting into a correspondingly shaped opening in thetable 3, in order that the correct position of the standard may bereadily cletermined in assembling the device.

In operation, the current of air from the fan A striking the vanes 16 ofthe wheel 13 rotates said wheel and the pulley 17, thereby rotating thepulley 18 and the shaft 1 through the belt 19. The free end of the crank(S is held from lateral or horizontal movement by the link 7, except inso far as the spring arm 8 permits the link to yield, but is free tomove vertically. It will thus be seen that when the shaft 4 is rotated,said shaft, and with it the table 3, will be oscillated in a horizontalplane, because the free end of the crank 6 is held against suchhorizontal movement. At the end of travel of the table 3 in onedirection, as shown in dotted lines at the top of Fig. 3, tension isplaced on the link 7 and the travel of the table is yieldingly stoppedby the spring 8. Similarly, travel of the table is stopped at itsopposite limit of movement, the link 7 being put under compression.

The speed of oscillation of the table 3 may be controlled and varied atwill by changing the degree of inclination of the vanes 16 on the arms15 with respect to the direction of the air current from the fan A, thewheel 13, and therefore the shaft 4, rotating faster or sloweraccordingly.

I would have it understood that I do not limit myself to the exactconstruction herein shown and described, for various modifications willoccur to those skilled in the art.

I claim as my invention:

1. In a fan support, in combination, a rotatable table; a shaftrotatably carried by said table; a crank on one end of said shaft; meansfor holding the free end of said crank against horizontal movement; awheel rotatably carried by said. table and adapted to be rotated by thecurrent of air from the fan; and a connection between said wheel andsaid shaft for rotating said shaft.

2. In a fan support, in combination, a base; a table rotatably mountedon said base; a shaft rotatably carried by said table; a. crank on oneend of said shaft; a yielding member fixed on said base; a linkconnecting said yielding member with the free end of said crank andpreventing horizontal movement of said free end; and means for rotatingsaid shaft.

8. In a fan support, in combination, a rotatable table; a bracketsecured to the under side of said table; a shaft rotatably mounted insaid bracket, the outer end of said shaft extending beyond the edge ofthe table; a crank on the inner end of said shaft; means for holding thefree end of said crank against horizontal movement; a wind wheelrotatably carried by said table and arranged to be rotated by the aircurrent from the fan; a pulley rigid with respect to said wind wheel; apulley on the outer end of said shaft; and a belt connecting saidpulleys.

4. In a fan support, in combination, a rotatable table adapted to carrya fan; a standard rising from one edge of said table; a wind wheelrotatably carried by the upper end of said standard, said wheelcomprising a plurality of radial vanes which are adustable to vary theirdegree of incllnation with respect to the air current from the fan;

7 and means beneath said table arranged to be driven by said wind wheelfor rotating said table.

5. In a fan support, in combination, a rotatable table; a shaftrotatably carried by said table; means for rotating said shaft; a crankon one end of said shaft; and yield ing means for holding the free endof said crank against horizontal movement and for stopping the rotationof said table at the limits of its movement.

6. In a fan support, in combination, a rotatable table; an extensiblestandard comprising two telescoping sections rising from one edge ofsaid table; a wind wheel rotatably carried by the upper end of saidstandard and arranged to be driven by the air current from the fan; andmeans beneath said table arranged to be driven by said wind wheel forrotating said table.

7 A support for electrically-driven ventilating fans of the usual form,said support comprising a table upon which the base of the fan may beset; a base on which said table is rotatably mounted; a wind wheelsupported. by said table; a crank carried by said table; a connectionbetween said crank and the table-base; and a driving connection betweenthe wind wheel and the crank.

8. A support for electrically-driven ventilating fans of the ordinaryform, said support comprising a table upon which the base of the fan maybe set; a base on which said table is rotatably mounted; a wind wheelsupported by said table; a horizontal crank shaft carried by said tableupon the lower side thereof; a yielding connection between the crank ofsaid shaft and the table base; and a driving connection between the windwheel and the shaft.

FRANK ANDRUS. lVitnesses Josnrrr l/VEBER, C. P. LAYNE.

